<template>
  <div>
    <h1>{{id ? '编辑' : '新建'}}文章</h1>
    <el-form label-width="120px" @submit.native.prevent="save">
      <el-form-item label="所属分类">
        <el-select v-model="model.categories" multiple>
          <el-option
            v-for="item in categories"
            :key="item._id"
            :label="item.name"
            :value="item._id"
          ></el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="标题">
        <el-input v-model="model.title"></el-input>
      </el-form-item>

      <el-form-item label="详情">
        <vue-editor v-model="model.body" useCustomImageHandler @image-added="handleImageAdded"></vue-editor>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { VueEditor } from 'vue2-editor'

export default {
  props: {
    id: {}
  },
  data () {
    return {
      model: {}, // 存入数据库中的数据
      categories: [] // 文章所属分类
    }
  },
  components: {
    VueEditor
  },
  created () {
    this.id && this.fetch()
    this.fetchCategories()
  },
  methods: {
    /** 保存数据 */
    async save () {
      let res
      if (this.id) { // id存在则put修改
        res = await this.$http.put(`rest/articles/${this.id}`, this.model)
      } else { // 没有id则新增
        res = await this.$http.post('rest/articles', this.model)
      }
      console.log(res)
      this.$router.push('/articles/list').catch(err => { console.log(err) })
      this.$message({
        type: 'success',
        message: '保存成功'
      })
    },
    /** 编辑数据 */
    async fetch () {
      const res = await this.$http.get(`rest/articles/${this.id}`)
      this.model = res.data
    },
    /** 获取文章所属分类 */
    async fetchCategories () {
      const res = await this.$http.get('rest/categories')
      this.categories = res.data.items
    }
  }
}
</script>

<style scoped>

</style>
